Advertisements
Advertisements
प्रश्न
Name the scientists who discovered the following:
Safety lamp
Advertisements
उत्तर
A scientist who discovered Safety lamp: : Sir Humphry Davy
APPEARS IN
संबंधित प्रश्न
Give two examples of the following substance.
Fuel
Name the scientists who discovered the following:
Atoms
Explain in brief the importance of Chemistry in agriculture.
State the contributions of Dimitri Mendeleev
Differentiate between the terms food preservatives and food processing with appropriate examples.
Explain the term ‘cosmetics’ ‘talc’. Name a few main ingredients in cosmetics the role they play.
Give reasons for the following
Aspirin is one of the most widely used medications – globally.
Give reasons for the following
Ordinary soap is wasted in hard water.
Give reasons for the following
Polyester is added to natural fiber cotton, to give terylene.
Select the correct name from the choices given below for the following case.
A synthetic fibre used in clothing.
